<template>
    <el-row :gutter="40" class="panel-group">
        <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel" @click="handleSetLineChartData('newVisitis')">
                <div class="card-panel-icon-wrapper icon-people">
                    <svg-icon icon-class="eye-open" class-name="card-panel-icon" />
                </div>
                <div class="card-panel-description">
                    <div class="card-panel-text">
                        本月阅读量
                    </div>
                    <count-to
                        :start-val="0"
                        :end-val="totalAmounts.monCount"
                        :duration="computeDuration(totalAmounts.monCount)"
                        class="card-panel-num"
                    />
                </div>
            </div>
        </el-col>
        <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel" @click="handleSetLineChartData('messages')">
                <div class="card-panel-icon-wrapper icon-message">
                    <svg-icon icon-class="documentation" class-name="card-panel-icon" />
                </div>
                <div class="card-panel-description">
                    <div class="card-panel-text">
                        文章总数
                    </div>
                    <count-to
                        :start-val="0"
                        :end-val="totalAmounts.newsAmount"
                        :duration="computeDuration(totalAmounts.newsAmount)"
                        class="card-panel-num"
                    />
                </div>
            </div>
        </el-col>
        <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel" @click="handleSetLineChartData('purchases')">
                <div class="card-panel-icon-wrapper icon-money">
                    <svg-icon icon-class="tree-table" class-name="card-panel-icon" />
                </div>
                <div class="card-panel-description">
                    <div class="card-panel-text">
                        大类总数
                    </div>
                    <count-to
                        :start-val="0"
                        :end-val="totalAmounts.categoryAmount"
                        :duration="computeDuration(totalAmounts.categoryAmount)"
                        class="card-panel-num"
                    />
                </div>
            </div>
        </el-col>
        <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
            <div class="card-panel" @click="handleSetLineChartData('shoppings')">
                <div class="card-panel-icon-wrapper icon-shopping">
                    <svg-icon icon-class="excel" class-name="card-panel-icon" />
                </div>
                <div class="card-panel-description">
                    <div class="card-panel-text">
                        横幅总数
                    </div>
                    <count-to
                        :start-val="0"
                        :end-val="totalAmounts.bannerAmount"
                        :duration="computeDuration(totalAmounts.bannerAmount)"
                        class="card-panel-num"
                    />
                </div>
            </div>
        </el-col>
    </el-row>
</template>

<script>
import CountTo from 'vue-count-to'
import { getBasicData } from '@/api/home'

export default {
    components: {
        CountTo
    },
    data() {
        return {
            totalAmounts: {}
        }
    },
    created() {
        this.getHomeData()
    },
    methods: {
        getHomeData() {
            getBasicData().then(data => {
                this.totalAmounts = data
            })
        },
        handleSetLineChartData(type) {
            this.$emit('handleSetLineChartData', type)
        },
        computeDuration(count) {
            const n = count / 10
            return n > 1500 ? (n > 5000 ? 5000 : n) : 1500
        }
    }
}
</script>

<style lang="scss" scoped>
.panel-group {
  margin-top: 18px;

  .card-panel-col {
    margin-bottom: 32px;
  }

  .card-panel {
    height: 108px;
    cursor: pointer;
    font-size: 12px;
    position: relative;
    overflow: hidden;
    color: #666;
    background: #fff;
    box-shadow: 4px 4px 40px rgba(0, 0, 0, .05);
    border-color: rgba(0, 0, 0, .05);

    &:hover {
      .card-panel-icon-wrapper {
        color: #fff;
      }

      .icon-people {
        background: #40c9c6;
      }

      .icon-message {
        background: #36a3f7;
      }

      .icon-money {
        background: #f4516c;
      }

      .icon-shopping {
        background: #34bfa3
      }
    }

    .icon-people {
      color: #40c9c6;
    }

    .icon-message {
      color: #36a3f7;
    }

    .icon-money {
      color: #f4516c;
    }

    .icon-shopping {
      color: #34bfa3
    }

    .card-panel-icon-wrapper {
      float: left;
      margin: 14px 0 0 14px;
      padding: 16px;
      transition: all 0.38s ease-out;
      border-radius: 6px;
    }

    .card-panel-icon {
      float: left;
      font-size: 48px;
    }

    .card-panel-description {
      float: right;
      font-weight: bold;
      margin: 26px;
      margin-left: 0px;

      .card-panel-text {
        line-height: 18px;
        color: rgba(0, 0, 0, 0.45);
        font-size: 16px;
        margin-bottom: 12px;
      }

      .card-panel-num {
        font-size: 20px;
      }
    }
  }
}

@media (max-width:550px) {
  .card-panel-description {
    display: none;
  }

  .card-panel-icon-wrapper {
    float: none !important;
    width: 100%;
    height: 100%;
    margin: 0 !important;

    .svg-icon {
      display: block;
      margin: 14px auto !important;
      float: none !important;
    }
  }
}
</style>
